公开(公告)号：US20220069890A1

公开(公告)日：2022-03-03

申请号：US17445329

申请日：2021-08-18

Applicant: QUALCOMM Incorporated

Inventor： Qian ZHANG ,  Yan Zhou ,  Navid Abedini ,  Junyi Li ,  Tao Luo ,  Peter Gaal ,  Jing Sun

IPC: H04B7/08 ,  H04L5/14 ,  H04B17/336

Abstract: Certain aspects of the present disclosure provide techniques for beam pair selection. A method that may be performed by a user equipment (UE) includes receiving, from a base station (BS), an indication to report one or more beam pairs to be used for full-duplex (FD) communication based on a timing constraint, wherein the timing constraint comprises a constraint on a time difference between receptions, at the UE, of a downlink (DL) signal and an uplink (UL) signal for each of the one or more beam pairs and transmitting a report specifying the one or more beam pairs in accordance with the indication, in accordance with aspects of the present disclosure.

公开(公告)号：US11258564B2

公开(公告)日：2022-02-22

申请号：US16313806

申请日：2017-05-11

Applicant: Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  QUALCOMM Incorporated

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal

IPC: H04L5/00

Abstract: Signaling design for interlaced frequency divisional multiplex (IFDM) demodulation reference signals (DMRS) is discussed in which a dynamic indication is provided to a user equipment (UE) from a serving base station that allows the UE to configure transmission of DMRS according to either a single carrier frequency divisional multiplex (SC-FDM) or IFDM configurations, as indicated by the dynamic indication. The IFDM configuration may be applicable to either regular uplink subframes or within the uplink portion of special subframes. In some aspects, power boosting may be provided for the DMRS in order to equalize transmit power between decimated DMRS transmitted with the data tones. Additional aspects may also provide for different offsets to be used depending on the type of uplink control signal transmitted.

公开(公告)号：US11252772B2

公开(公告)日：2022-02-15

申请号：US16732132

申请日：2019-12-31

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Alberto Rico Alvarino ,  Wanshi Chen ,  Peter Gaal

IPC: H04W76/15 ,  H04L5/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may identify, for a carrier aggregation (CA) configuration including a primary cell and one or more secondary cells, a first frame structure configuration for the primary cell and a second frame structure configuration for a secondary cell of the one or more secondary cells. The UE may receive, from a base station, a downlink communication on the secondary cell. The UE may determine a feedback timing for the secondary cell based on the first frame structure configuration for the primary cell and the second frame structure configuration for the secondary cell. The UE may transmit, in response to the received downlink communication, feedback to the base station according to the feedback timing.

公开(公告)号：US11252676B2

公开(公告)日：2022-02-15

申请号：US17101762

申请日：2020-11-23

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Xiao Feng Wang ,  Wanshi Chen ,  Seyedkianoush Hosseini ,  Heechoon Lee ,  Tingfang Ji ,  Amir Aminzadeh Gohari

IPC: H04W52/14 ,  H04W52/28

Abstract: Power control in new radio (NR)-to-NR dual connectivity communications is disclosed. A UE, compatible for NR-to-NR dual connectivity, may receive a transmit power configuration and a power allocation configuration. The transmit power configuration identifies the designated reserved power for each of the cell groups participating in the dual connectivity communication. The power allocation configuration identifies to the UE whether to operate access to excess transmission power by either mode 1 rules, which may introduce phase discontinuity into ongoing transmissions, or mode 2 rules, which use a look-ahead functionality to trigger joint determination and allocation of transmission power among known uplink transmissions over a given transmission duration. After the determined transmission power allocation has been made, the UE transmits the dual connectivity transmissions according to the determined power.

公开(公告)号：US11246107B2

公开(公告)日：2022-02-08

申请号：US16671007

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Valentin Alexandru Gheorghiu ,  Hari Sankar ,  Gaurav Nigam ,  Peter Gaal

IPC: H04W56/00 ,  H04W24/10 ,  H04L12/26 ,  H04B7/06 ,  H04W72/04 ,  H04W72/08 ,  H04L1/00 ,  H04L5/00 ,  H04W76/27 ,  H04B17/336

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of carriers configured for communications between the UE and one or more transmission reception points (e.g., a set of transmission points). The UE may receive multiple communications over different carriers and determine a time difference or delay between two of the carriers (e.g., a first carrier and a second carrier). Based on the time difference and a time difference threshold, the UE may perform a throughput degradation procedure such as transmitting a report indicating the time difference, transmitting a feedback report with channel quality information determined based on the time difference, etc.

公开(公告)号：US11239972B2

公开(公告)日：2022-02-01

申请号：US15802306

申请日：2017-11-02

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Renqiu Wang ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu

IPC: H04L5/00 ,  H04W56/00 ,  H04W74/08

Abstract: Aspects of the present disclosure provide techniques and apparatus for performing narrowband physical random access channel (PRACH) procedures in large cells. For example, aspects of the present disclosure provide techniques for narrowband PRACH procedures (e.g., narrowband internet of things (NB-IoT)) to accommodate larger RTTs (e.g., up to 100 km). In some cases, supporting larger RTTs may involve a base station altering its PRACH processing by performing a two-step process of, first, obtaining a frequency domain phase offset based on an uplink signal from a UE, which provides a fractional delay and, second, performing a time domain correlation for different timing hypotheses to determine a timing offset based on the uplink signal. Supporting larger RTTs may also involve enabling a new NPRACH format that may coexist with legacy 3.75 kHz resources.

公开(公告)号：US11234262B2

公开(公告)日：2022-01-25

申请号：US16269903

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Amir Aminzadeh Gohari ,  Joseph Binamira Soriaga ,  Tao Luo ,  Peter Gaal

IPC: H04W72/14 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described that support configuration of aperiodic sounding reference signal transmission and triggering. A base station may transmit, within a first transmission time interval (TTI), a grant triggering a user equipment (UE) to transmit an aperiodic sounding reference signal (A-SRS), and may identify offset information indicating a TTI offset relative to the grant. The base station may determine a second TTI for the A-SRS based on the TTI offset. A UE may detect, within a first TTI, the grant triggering the UE to transmit the A-SRS, identify the offset information indicating the TTI offset relative to the grant, and determine the second TTI for transmitting the A-SRS based on the TTI offset. The UE may transmit the A-SRS in an SRS resource of the second TTI, and the base station may monitor the SRS resource of the second TTI for the A-SRS.

公开(公告)号：US11233685B2

公开(公告)日：2022-01-25

申请号：US16243722

申请日：2019-01-09

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Xiao Feng Wang ,  Seyong Park ,  Peter Gaal

IPC: H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: The present disclosure relates generally to wireless communication systems, and more particularly, to a design for generating and utilizing orthogonal cover code (OCC) sequences for physical uplink control channel (PUCCH) transmissions. An exemplary method includes a user equipment (UE) selecting an orthogonal cover code (OCC) sequence for an uplink transmission, wherein the OCC sequence is selected from a first set of OCC sequences designed to achieve target peak to average power ratios (PAPRs) for a plurality of different modulation schemes; and transmitting the uplink transmission, via a wireless medium, with one of the modulation schemes using the selected OCC sequence.

公开(公告)号：US11228405B2

公开(公告)日：2022-01-18

申请号：US16729119

申请日：2019-12-27

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Xiao Feng Wang ,  Wanshi Chen ,  Peter Gaal

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/00 ,  H04L27/26

Abstract: The described techniques provide for devices (e.g., a base station, a user equipment (UE)) to determine control channel processing limits for control channels for a CA configuration for a plurality of component carriers (CCs) with mixed numerology and synchronicities (e.g., CCs may have different transmission time interval (TTI) durations, subcarrier spacings, or frame timing). The devices may determine control channel processing limits for numerology groups or synchronization groups of the CA configuration based on a UE capability for processing control channels for a number of CCs, which may be allocated proportionally according to number of cells, allocated equally, or allocated using weighting factors assigned to synchronization or numerology groups. A base station may establish a CA configuration or control channel configuration according to the capability, or may ensure that a per-numerology restraint is not exceeded by determining a combined processing parameter.

公开(公告)号：US11218993B2

公开(公告)日：2022-01-04

申请号：US16453851

申请日：2019-06-26

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Linhai He ,  Wanshi Chen ,  Wei Yang ,  Peter Gaal

IPC: H04W72/02 ,  H04L5/00 ,  H04W72/12 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for service request (SR) prioritization for intra-UE (user equipment) ultra-reliable low-latency communication (URLLC) service and enhanced mobile broadband (eMBB) service multiplexing. Aspects provide a method for wireless communications by a UE. The method includes determining one or more transmission resources for one or more service requests (SRs) for a first type of service and/or a second type of service. The method includes determining one or more priority levels associated with the one or more transmission resources. The method includes transmitting the one or more SRs using the determined one or more transmission resources based on the associated priority levels.